1) The encryption means your traffic cannot be deciphered by 3rd parties such as ISPs or other agencies.
Nothing is intelligeible without a private key from your personal server. If you wish extra security, you can
keep the key on your local hard disk.

2) As an XML-based social software system, it offers a single place to store your data online, so you
won't need to remember multiple passwords and logins for different sites. What is more, it has
minimal lock-in. i.e. No company or other organisation will have control of your data.
One click will allow you to transfer it all to your local hard drive, in an open XML standard.

3) The social nature means that everyone who contacts you will be related by a chain of friendships,
such as a friend of a friend. Unlike Email or WWW, it is not anonymous, so spammers can be easily identified and excluded.

4) The decentralised nature of the system means that F2F has no single point of failure or control.
So provided people still see value in networking directly, the system will continue.